system/gcc: Update to 13.3.0

0012-static-pie and 201-ada were forward-ported by my own paws.

Three digit 0xx underscore patches are from Gentoo.  This is also the
source of the insn-split and match-split patches, which significantly
increase performance on build.  They are also the source of the new
configure option --with-matchpd-partitions.  On systems with very many
cores/threads, a number higher than 32 would probably perform even
better, but 32 should give decent perf on 8+ threads, and runs quite
nicely on the 64-thread Talos II I ran the testbuild on.

202 is from Void.  The 300s are originally written by me.

The Ada patch now includes an improvement to use posix_openpt instead
of getpt, which fixes link errors later on.

We also now use STAGE1_CFLAGS and BOOT_CFLAGS to improve build times.
Improvement was clocked from 40m to 32m (-8m, or 20%) on gwyn.

The patch for Go name mangling is needed to build packages that use
reflect2, which includes user/gitlab-runner.

1 files changed, 0 insertions, 37 deletions

diff --git a/system/gcc/342-gccgo-more-unwinding.patch b/system/gcc/342-gccgo-more-unwinding.patch
deleted file mode 100644
index 7f059b4dc..000000000
--- a/system/gcc/342-gccgo-more-unwinding.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-The fix for #832 was incomplete.  Since we strip libgo.so, filename is
-always NULL.  This caused the unwinder to continue through
-runtime_mstart which caused the same issue.
---- gcc-8.5.0/libgo/runtime/go-callers.c.old	2023-01-01 17:56:27.302982459 -0600
-+++ gcc-8.5.0/libgo/runtime/go-callers.c	2023-01-01 17:58:00.612903483 -0600
-@@ -118,27 +118,11 @@
-   if (function != NULL)
-     {
-       if (__builtin_strcmp (function, "makecontext") == 0
--          || __builtin_strcmp (function, "libucontext_makecontext") == 0)
-+          || __builtin_strcmp (function, "libucontext_makecontext") == 0
-+	  || __builtin_strcmp (function, "runtime_mstart") == 0
-+	  || __builtin_strcmp (function, "runtime.kickoff") == 0
-+	  || __builtin_strcmp (function, "runtime.main") == 0)
- 	return 1;
--      if (filename != NULL)
--	{
--	  const char *p;
--
--	  p = strrchr (filename, '/');
--	  if (p == NULL)
--	    p = filename;
--	  if (__builtin_strcmp (p, "/proc.c") == 0)
--	    {
--	      if (__builtin_strcmp (function, "runtime_mstart") == 0)
--		return 1;
--	    }
--	  else if (__builtin_strcmp (p, "/proc.go") == 0)
--	    {
--	      if (__builtin_strcmp (function, "runtime.kickoff") == 0
--		  || __builtin_strcmp (function, "runtime.main") == 0)
--		return 1;
--	    }
--	}
-     }
- 
-   return arg->index >= arg->max;